As adjectives the difference between conniving and duplicitous
is that conniving is that connives; conspiratorial while duplicitous is given to or marked by deliberate deceptiveness in behavior or speech.
As a verb conniving
is .
duplicitous
English
Adjective
(
en adjective)
Given to or marked by deliberate deceptiveness in behavior or speech.
Synonyms
* deceitful, double-dealing, two-faced
Related terms
* duplicate
* duplicitously
* duplicitousness
* duplicity